Need Clarity: lateral() modifier and absence of lateral() modifier

Need Clarity: lateral() modifier and absence of lateral() modifier

Given the following example: EXAMPLE 1:

v1: vehicle

do parallel:
    v1.drive() with:
        along(route1)
        speed(45kph, at: start)
    v1_lat: serial:
        wait(elapsed(20sec))
        v1.drive(duration: 2sec) with: 
            lateral(-1.5m, at: end)
        wait(elapsed(40sec))

What happens to the lateral position at the end of the 2 seconds? Does the vehicle snap back to the center?

Assumption: The lateral() modifier springs back to center after the lateral() modifier is completed; at least this is the current assumption.

EXAMPLE 2:

v1: vehicle
lateral_distance_default: length = 0m

do parallel:
    v1.drive() with:
        along(route1)
        speed(45kph, at: start)
        lateral(lateral_distance_default, at: all)
    v1_lat: serial:
        wait(elapsed(20sec))
        v1.drive(duration: 2sec) with: 
            lateral(-1.5m, at: end)
        wait(elapsed(40sec))

What happens to the lateral position at the end of the 2 seconds? Does the vehicle snap back to the center?

Assumption: The lateral() modifier springs back to center after the lateral() modifier is completed; at least this is the current assumption.

Is this what is required to maintain a lateral bias?:

EXAMPLE 3:

v1: vehicle

do parallel:
    v1.drive() with:
        along(route1)
        speed(45kph, at: start)
    v1_lat: serial:
        wait(elapsed(20sec))
        v1.drive(duration: 2sec) with:    # achieve a lateral bias within 2 seconds
            lateral(-1.5m, at: end)
        v1.drive(duration: 40sec) with:   # keep lateral bias for 40 seconds
            lateral(-1.5m, at: all)