Go back for retest around the middle of this week lines are usually shorter than end of month and drive car for at least 1/2hr in reg traffic. if you can't do it than let car run while in line at least 2 cars before your turn.

All limits are set by state and mech inserts info from registration and computer
does the rest. A minor thing like incorrect tire size can throw you off.
Good luck keep us posted and welcome to Va