I had an accident in a company vehicle can an employer in Texas deduct wages to cover those expenses without my knowledge and pay me 2 weeks late,

Short Answer: Not without your written permission. An employer must pay a houly employee at least twice each month and a salaried employee at least once each month on pre-established dates. An employer may not withhold any amounts from a paycheck (except taxes and court-ordered child support) without the express written consent of the employee. Even with permission, an employer may not withold an amount of money which would cause the employee's wages to fall below minimum wage. Complaints about unpaid wages in Texas can be directed to the Texas Workforce Commission - Labor Law Department (not the unemployment folks).  Ask to file a '"Payday Act Complaint" Good luck.