(c) Notwithstanding Subsection (b), in any state fiscal year the comptroller shall deposit 49.5 percent of the surcharges collected under Chapter 708, Transportation Code, to the credit of the general revenue fund only until the total amount of the surcharges deposited to the credit of the general revenue fund under Subsection (b), and the state traffic fines deposited to the credit of that fund under Section 542.4031(g)(1), Transportation Code, equals $250 million for that year. If in any state fiscal year the amount received by the comptroller under those laws for deposit to the credit of the general revenue fund exceeds $250 million, the comptroller shall deposit the additional amount to the credit of the Texas mobility fund
responsibility program operated by that department under Chapter 708, Transportation Code.