Hi Elmira, thanks for your careful attention to this issue. Unfortunately, I think you are still partly mistaken. Please see the following image from Mapillary (a street-level imagery source who has given OpenStreetMap permission to use its images in improving OSM): https://www.mapillary.com/app/?pKey=284044510080651&focus=photo&lat=29.93351099999998&lng=-95.646029&z=18.398531005710502&x=0.49249642090185536&y=0.47767376548165447&zoom=0

If you go to '...' (image options) and then 'advanced', it shows the image was taken at 10:09am on Wednesday, December 11, 2019. On the left of the image, there is an electronic pricing sign for the express lane, which shows the current prices for single-occupant vehicles - $1.00, which corresponds to the current information on the website for 10:00am, and FREE, for 2+ HOV vehicles. This sign confirms that 2+ HOV vehicles do not have to pay a toll outside of the HOV-exclusive period, at least for weekdays, as of 2019. (Are you aware of any changes to this condition since 2019?)

However, I believe I was wrong and you are correct about weekends - all vehicles, HOV or not, must pay a $1.00 toll on Saturday and Sunday.

Based on our findings, I would suggest not restoring my previous tag toll:hov=no, but rather modifying yours to toll:hov:conditional=no @ (Mo-Fr). Does this seem okay to you?